Cinnamate ester
= Cinnamate ester
An <ester> containing the conjugated fragment Ph-CH=CH-C(=O)-O-R. Its trans <alkene> commonly has a large vicinal proton coupling, while <HMBC> can connect an alkoxy methylene to the <ester> <carbonyl>.
= Cinnamate ester
An <ester> containing the conjugated fragment Ph-CH=CH-C(=O)-O-R. Its trans <alkene> commonly has a large vicinal proton coupling, while <HMBC> can connect an alkoxy methylene to the <ester> <carbonyl>.